package com.hs.netty.chapter02;

import com.hs.netty.chapter01.EchoHandler;
import com.hs.netty.chapter01.EchoServer;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;

/**
 * @Author: songhao
 * @Date: 2021/8/24
 * @Description: TODO
 */
public class TimeServer {

    private int port;

    public TimeServer(int port){
        this.port = port;
    }

    public void run() throws Exception{
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try{
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new TimeServerHandler());
                        }
                    })
                    .option(ChannelOption.SO_BACKLOG, 128)
                    .childOption(ChannelOption.SO_KEEPALIVE, true);

            //绑定端口，开始接收进来的连接
            ChannelFuture channel = bootstrap.bind(port).sync();
            //等待服务socket关闭
            channel.channel().closeFuture().sync();
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception{
        int port;
        if(args.length > 0){
            port = Integer.parseInt(args[0]);
        }else{
            port = 8888;
        }
        new TimeServer(port).run();
    }
}
